Susceptibility to a multisensory speech illusion in older persons is driven by perceptual processes.
Citation:
Setti A, Burke KE, Kenny R, Newell FN., Susceptibility to a multisensory speech illusion in older persons is driven by perceptual processes., Frontiers in Psychology: Language Sciences., 4, 575, 2013Download Item:
Setti_2013-FIP.pdf (PDF) 1.235Mb
Abstract:
Recent studies suggest that multisensory integration is enhanced in older adults but
it is not known whether this enhancement is solely driven by perceptual processes or
affected by cognitive processes. Using the “McGurk illusion,” in Experiment 1 we found
that audio-visual integration of incongruent audio-visual words was higher in older adults
than in younger adults, although the recognition of either audio- or visual-only presented
words was the same across groups. In Experiment 2 we tested recall of sentences within
which an incongruent audio-visual speech word was embedded. The overall semantic
meaning of the sentence was compatible with either one of the unisensory components
of the target word and/or with the illusory percept. Older participants recalled more illusory
audio-visual words in sentences than younger adults, however, there was no differential
effect of word compatibility on recall for the two groups. Our findings suggest that the
relatively high susceptibility to the audio-visual speech illusion in older participants is due
more to perceptual than cognitive processing.
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Intel
Author's Homepage:
http://people.tcd.ie/fnewellDescription:
PUBLISHEDPMC3760087
Author: NEWELL, FIONA
Type of material:
Journal ArticleCollections:
Series/Report no:
Frontiers in Psychology: Language Sciences.4
575
Availability:
Full text availableKeywords:
VBM, fMRI, diffusion, DTI, structural, negative BOLD, deactivation, synesthesia, synesthesia, deactivation,, VBM, fMRISubject (TCD):
Ageing , Neuroscience , Behavioral/Experimental Psychology , Cognitive Development/ProcessesLicences: